Mixing-machine.



PATENTE'D OGT.'18,-1904. R. OUNNINGHAM & J. WJMOPHERSON.

. MIXING MACHINE. APPLIOATION rum) M179, 1904.

2 SHEETS-SHEET 1-.

N0 MODEL.

INVENTO RS."

' Bye WITNESSES:

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ATTORNEY,

' PATENTED-OOT. 18,1904.

' R; N. GUNNINGHAM.& 'J. W. MQPHERSON.

MIXING M'AGHINB. .APPLIOATION FILED MAY 9, 1904.

K0 MODEL.

3-: ,2, IIIEEE r WITNESSES:

zgham/ 2 /50 550127 UNITED STAT S Patented October 18, 1904.

PAT NT I OFFIcE.

ROY N. CUNNINGHAM AND JOHN W. MOPHERSON, OF COLUMBUS, OHIO.

MIXING-MACHINE."

SPECIFICATION forming part of Letters Patent N0. 772,697, dated October 18, 1904. 7

Application filed May 9,1904. Serial No- 207,139. (No model.)

perior means for thoroughly mixing the mafixed to the frame 1.

terial and also in the provision of means whereby the material is prevented from coating the sides of the drum. 1 One of the most particular features. of our invention resides in the particular construction andshape of the mixing-plows whereby the material is constantly agitated.

Finally, the object of the invention is to provide a device of the type set forth that will be strong, durable, and efficient and one in which the several parts will not be liable to get out of working order.

With the above and other objects in view the invention consists of the novel'details of construction and operation, a preferableembodiment of which is described in the specification and illustrated in the drawings, where- 1n Figure 1 is a top plan view of the machine. Fig. 2 is a side elevation showing in dotted lines the dumping position of the drum. Fig.

3 is a side elevation with the side plate of the drum removed, and Fig. 4: is a detail plan view of the mixing-plows. lnthe drawings the numeral 1 designate the frame, which has a general rectangular form and may be of any suitable construc: tion. A drum 2, having side plates 8, to which are bolted bearing collars 4, is supported upon a transverse shaft 5, which passes loosely through the bearing-collars "4t and bearingboxes 6, secured on the frame 1. The shaft 5 is rotated by means of a drive-pulley 7, keyed on the outer end thereof, and the drum is held against rotation by means of a dump ing-bar 8, which is caught under a hook 9, The drum is formed in its upper side with an opening 10 and a mouthlike portion 11. It will be observed that the other portion of the drum has a circular contour and that the plows 12 and 13 in passing around the drum will contact with the surface I thereof except where they pass the mouth portion 11. Any suitable means may be disposed above the opening 10 by which the material to be mixed may be fed into the drum. The plows 12 and 13 are securely fastened to bars let, each of which supports two plows and is formed with an offset 15, fitting about the shaft, to which it. is held by means of a binding-plate 16, bolted to the bar 14, so that the same is rigidly fixed upon the shaft 5. The plows 13 aresecured to the bar 14 by means of straps 17 which will assist in forming a rigid structure. It is to be observed that the 'end plows 12 are so arranged as to contact with the side plates 3 and the drum 2 and being curved and disposed at such an angle as to scrape the material from the side plates and that portion of the drum adjacent thereto,

turning the same over and throwing it toward the center of the machine. The plows 13 are eachformed with diverging wings 18 and are arranged between the plows 12 in their path of travel,so that as the material is scraped and thrown over by the plows 12 it is caught upon the plows 13, which follow,.and again turned and thrown back toward the plows 12, the plows 13 at the same time scraping and agitating the material about the central surface of the drum and interior thereof. It will thus be seen that a constant scraping and agitation of the material to be mixed is had, and by such a treatment a thorough mixture is accomplished.

From the foregoing description it is thought that the operation will be readily apparent. The material to be mixed being fed into the drum through the opening 10 and power applied to the drive-pulley 7, the plows are caused to travel around the drum from right dumping-bar from the hook 9 and swinging the same to the right, which causes the drum to make a quarter-turn, bringing the mouthlike portion 11 to the bottom of the frame, as shown in dotted lines in Fig. 2. It is to be understood that this dumping of'the drum is accomplished without stopping or affecting the operation of the plows and that when the drum is thrown to its discharging position, as shown in Fig. 2, the plows will act to throw out the material through the opening 10, the mouth-like portion 11 acting as a dischargechute under which any suitable receptacle for receiving the mixed material may be placed.

When the drum has been entirely emptied, it may be swung to its normal position by means of the bar 8, which is caught under the hook 9 to securely'hold the drum in place.

Having now fully described our invention, what we claim, and desire to secure by Letters Patent, is

1. In a mixing-machine, the combination with a swinging drum normally held against rotation, of a shaft passing throughthe drum, single curved plow-blades disposed at divergent angles to the shaft from which they are supported, and double oppositely curved plow-blades arranged intern'lediatc the single blades and supported by the shaft.

2. A heater for mixing-machines, comprising, a shaft, flaring plow-blades disposed at an angle to the longitudinal axis of the shaft, and intermediate plow-blades having oppositely-curved sides and supported from the shaft so as to follow in the path of the firstnamed blades.

ROY N. GUNNINGHAhil. JOHN \V. MOPHERSON.

In presence of- M. B. SonLnY, W. L. Monnow. 

